“By the time that the investigation concluded, he was charging $600 for the initial visit, $300 for all subsequent visits,” said Assistant U.S. Attorney Ann Wolf. He was seeing about 12 patients a night at that rate.

Yee pleaded guilty and was sentenced to 11 years in prison.

Wolf said Yee’s sentencing “sends a powerful message that doctors who engage in this type of behavior are going to pay a high price.”

The feds began looking in to Yee in 2010. Prosecutors said a third of his patients were under 25 years old.